FLUE GAS TREATMENT APPARATUS

PROBLEM TO BE SOLVED: To provide a flue gas treatment apparatus made in compact and a low cost. SOLUTION: As a filter 7 of a bag filter 2 is employed a filter having the front face side made of a filtration cloth 7a and the rear face side of the filtration cloth 7a made of a carbonaceous adsorbent layer 7a, which is a nitrogen oxide removal catalyst. A flue gas is passed through the filtration cloth 7a to remove dust by the filtration cloth 7a and HCl and SOX in the flue gas are sufficiently neutralized by sufficiently sticking a neutralization agent from a neutralization agent supply apparatus 8 to the filtration cloth and the neutralization reaction products are collected for dechlorination and desulfurization. The flue gas passed through the filtration cloth 7a is passed through the carbonaceous adsorption layer 7b to adsorb dioxins (DXN) in the flue gas for DXN removal, adsorb SOX in the flue gas in form of sulfuric acid for desulfurization, and also absorb mercury or the like in gaseous state for heavy metal removal and simultaneously NOX in the flue gas is reacted with the nitrogen oxide removal reducing agent from a nitrogen oxide removal reducing agent supply apparatus 9 to reduce and decompose NOX by the catalytic function of the carbonaceous adsorbent for nitrogen oxide removal.